Antarctic ice extent has reached approximately 20 million square kilometers, it's already broken the all - time record
ice extent set in September of 2012.
That marks the second straight year that the winter maximum
ice extent set a record low.
I view the question of whether the minimum sea
ice extent sets a new record this year as secondary.
Antarctic
ice extent setting new records last year, and close to breaking them this year again Extreme weather as measured by ACE on a decline for decades Drought as measured by Palmer Drought Index flat for decades Sea level increases not accelerating and possibly starting to decelerate Signature tropospheric hot spot completely missing Scientists by the bushel coming up with some of the most absurd excuses as to why....
Not exact matches
Treated separately, the two
sets of data do not show a statistically significant decrease in the
extent of Antarctic
ice, although they do show that the Arctic cap is shrinking.
As the Arctic sea -
ice reaches its summer minimum
extent, it is clear that it has yet again shrunk to one of the smallest areas in recent decades, 10 % above the record minimum
set last year.
A: The National Snow and
Ice Data Center (NSIDC) announced this week that the sea ice surrounding Antarctica reached its maximum extent — its widest halo around the continent — in 2014 on 22 September: more than 20 million square kilometers, which also set a record for the highest extent of sea ice around the continent since satellite measurements began in the late 197
Ice Data Center (NSIDC) announced this week that the sea
ice surrounding Antarctica reached its maximum extent — its widest halo around the continent — in 2014 on 22 September: more than 20 million square kilometers, which also set a record for the highest extent of sea ice around the continent since satellite measurements began in the late 197
ice surrounding Antarctica reached its maximum
extent — its widest halo around the continent — in 2014 on 22 September: more than 20 million square kilometers, which also
set a record for the highest
extent of sea
ice around the continent since satellite measurements began in the late 197
ice around the continent since satellite measurements began in the late 1970s.
This was the largest January Antarctic sea
ice extent on record, surpassing the previous record
set in 2008 by 220,000 square miles.
It is important to regard the LGM studies as just one
set of points in the cloud yielded by other climate sensitivity estimates, but the LGM has been a frequent target because it was a period for which there is a lot of data from varied sources, climate was significantly different from today, and we have considerable information about the important drivers — like CO2, CH4,
ice sheet
extent, vegetation changes etc..
Historically, a new low sea
ice extent (area) is
set every five years, with small recoveries in - between.
Evidence for regional warmth during medieval times can be found in a diverse but more limited
set of records including
ice cores, tree rings, marine sediments, and historical sources from Europe and Asia, but the exact timing and duration of warm periods may have varied from region to region, and the magnitude and geographic
extent of the warmth are uncertain.
Current
ice extent is well below levels at the same point in 2012, which went on to
set the current record for the lowest sea
ice minimum
extent:
«The far north has indeed been behaving bizarrely in Nov / Dec 2016,
setting many new records for temperature, sea
ice extent, atmospheric water vapour content, and Arctic amplification (the difference in temperature between the Arctic and northern mid-latitudes)»
The high anomalies up in the Arctic continue for a third month in GISTEMP and the question of the maximum Arctic Sea
Ice Extent is surely now only by how much this freeze season will be below the record low
set in 2017.
I got that in spades on the sea
ice thread when I argued that 2008 was not on a surefire course to surpass 2007's record, and rather was likely
set for an earlier and stronger recovery — yet I was correct (and incidentally
ice extent is now ~ 1.5 million km2 more than a year ago.)
Other data
sets such as ocean heat content, sea
ice extent, whatever, are not sufficiently mature or long - range (see Climate data records: maturity matrix).
By comparison, the actual minimum
ice extent was 18 percent less than the previous record
set in 2007.
Historically, a new low sea
ice extent (area) is
set every five years, with small recoveries in - between.
Using comprehensive data
sets of observations made between 1979 and 2001 of sea
ice thickness, draft,
extent, and speeds, we find that it is possible to tune model parameters to give satisfactory agreement with observed data, thereby highlighting the skill of modern sea
ice models, though the parameter values chosen differ according to the model forcing used.
The results are very similar to those when using the
ice extent data
set.
-- Antarctic sea
ice extent reached record high for second year in a row; South Pole station
set record high temperature: The Antarctic maximum sea
ice extent reached a record high of 7.56 million square miles on October 1.
And variations in the thickness and
extent of sea
ice cloaking the Arctic Ocean are driven by yet another
set of complicating factors, ranging from long - term shifts in atmospheric pressure patterns to events as close - focus as the potent Arctic superstorm I reported on earlier this month.
The National Snow and
Ice Data Center predicts this year's minimum summer sea ice extent won't break the record set in 20
Ice Data Center predicts this year's minimum summer sea
ice extent won't break the record set in 20
ice extent won't break the record
set in 2012.
The US National Snow and
Ice Data Center, which monitors Arctic ice, said last week: «It is unlikely that Arctic sea ice extent this September will fall below the record minimum set in 2012.&raq
Ice Data Center, which monitors Arctic
ice, said last week: «It is unlikely that Arctic sea ice extent this September will fall below the record minimum set in 2012.&raq
ice, said last week: «It is unlikely that Arctic sea
ice extent this September will fall below the record minimum set in 2012.&raq
ice extent this September will fall below the record minimum
set in 2012.»
Evidence for regional warmth during medieval times can be found in a diverse but more limited
set of records including
ice cores, tree rings, marine sediments, and historical sources from Europe and Asia, but the exact timing and duration of warm periods may have varied from region to region, and the magnitude and geographic
extent of the warmth are uncertain.
The Arctic wasn't just relatively hot last year — beating the previous record
set in 2010 by 0.17 degrees Celsius (0.3 degrees Fahrenheit)-- it also experienced the lowest sea
ice volume yet recorded, and the second - lowest
extent.
Arctic sea
ice shrank to its lowest level in 38 years last month, setting a record low for the month of May and setting up conditions for what could become the smallest Arctic ice extent in history, according to National Snow and Ice Data Center data released Tuesd
ice shrank to its lowest level in 38 years last month,
setting a record low for the month of May and
setting up conditions for what could become the smallest Arctic
ice extent in history, according to National Snow and Ice Data Center data released Tuesd
ice extent in history, according to National Snow and
Ice Data Center data released Tuesd
Ice Data Center data released Tuesday.
Sea
ice extent also continued its rapid decline with the Japanese Space Agency showing 4,800,000 square kilometers of sea
ice extent, about equal to the third lowest measurement
set in 2008.
Sea
ice extent fell to 4.10 million square kilometers (1.58 million square miles) on August 26, breaking the lowest
extent on record
set on September 18, 2007, of 4.17 million square kilometers (1.61 million square miles).
Arctic sea
ice is already beginning to melt and recede,
setting the stage for a very low sea -
ice minimum
extent that the center will declare in September, he added.
Walsh, J.E. 1978 A data
set on Northern Hemisphere sea
ice extent World Data Center - A for Glaciology (Snow and Ice), «Glaciological Data, Report GD - 2», part 1, pp. 49 - 51 http://arctic.atmos.uiuc.edu/SEAICE/, accessed 12/25/20
ice extent World Data Center - A for Glaciology (Snow and
Ice), «Glaciological Data, Report GD - 2», part 1, pp. 49 - 51 http://arctic.atmos.uiuc.edu/SEAICE/, accessed 12/25/20
Ice), «Glaciological Data, Report GD - 2», part 1, pp. 49 - 51 http://arctic.atmos.uiuc.edu/SEAICE/, accessed 12/25/2009.
Global mean temperatures in 2011 did not reach the record -
setting levels of 2010, but were still the highest observed in a La Niña year, and Arctic sea -
ice extent fell to near - record - low levels.
In the summer of 2012, Arctic sea
ice has broken the previous record for minimum
extent (
set in 2007), fallen below 4 million square kilometers, and, as of September 17, dropped below 3.5 million square kilometers in
extent.
Arctic sea
ice extent (SIE) has decreased over recent decades, with record -
setting minimum events in 2007 and again in 2012.
While Greenland was
setting records linked to melting, another was being
set around the chilly mass of Antarctica, which saw a new highest daily sea
ice extent.
But Julienne Stroeve with the National Snow and
Ice Data Center says the extent of sea ice in the far north this month wasn't quite small enough to break the record set in 20
Ice Data Center says the
extent of sea
ice in the far north this month wasn't quite small enough to break the record set in 20
ice in the far north this month wasn't quite small enough to break the record
set in 2012.
In fact, 2015 and early 2016
set records for the most sea
ice extent observed.
According to the National Snow and
Ice Data Center (NSIDC), the monthly average June 2010 ice extent was 10.87 million square kilometers, 1.29 million square kilometers below climatology (1979 - 2000) and 190,000 square kilometers below the previous record low for the month of 11.06 million square kilometers set in 20
Ice Data Center (NSIDC), the monthly average June 2010
ice extent was 10.87 million square kilometers, 1.29 million square kilometers below climatology (1979 - 2000) and 190,000 square kilometers below the previous record low for the month of 11.06 million square kilometers set in 20
ice extent was 10.87 million square kilometers, 1.29 million square kilometers below climatology (1979 - 2000) and 190,000 square kilometers below the previous record low for the month of 11.06 million square kilometers
set in 2006.
In September 2007 sea
ice extent reached its lowest level since the satellite record began in 1979; the monthly
extent, 4.28 × 106 square kilometers, surpassed the previous sea
ice minimum record (
set in 2005) by 1.28 × 106 square kilometers [Stroeve et al., 2008].
«It is found that the heat transport into the western Barents Sea
sets the boundary of the
ice - free Atlantic domain and, hence, the sea
ice extent.»
2012's sea
ice area and
extent were already trending low this year, but damage done to the thin and low concentration of
ice by this storm almost ensures that 2012 will eclipse 2007 in all categories as the lowest sea
ice on record by the time the September low is
set.
He says this winter may not
set a new record low sea -
ice extent for a third consecutive year.
The
extent of Bering Sea
ice cover this year has so far exceeded that of the previous two years, he added, because the extraordinary and record -
setting low sea -
ice formation of the past two winters mainly were due to a couple of short - term factors: a strong El Nino and an unusually persistent warm - water mass in the north Pacific commonly called «The Blob.»
The Antarctic has even recently broke the all time record
set for
ice extent in recorded satellite history.
As I have pointed out previously on spiked, when one out of six new studies showed that a new record had been
set for Arctic sea
ice extent, the Guardian's Damian Carrington declared: «Ice is the white flag being waved by our planet, under fire from the atmospheric attack being mounted by humanity.&raq
ice extent, the Guardian's Damian Carrington declared: «
Ice is the white flag being waved by our planet, under fire from the atmospheric attack being mounted by humanity.&raq
Ice is the white flag being waved by our planet, under fire from the atmospheric attack being mounted by humanity.»
Sea
ice in the Arctic and the Antarctic
set record low
extents every day in December, continuing the pattern that began in November.
The March 24, 2016 maximum sea -
ice extent was estimated at 5.6 million square miles (14.52 million square kilometers), which
set a new record for the lowest maximum
extent since satellite monitoring began in 1981.
Antarctic sea
ice has had a positive anomaly continually since that 2012 post and has
set all time
extent records.
Arctic sea
ice is now 28 % beneath its historic average
extent,
setting a record low for October.
The National Snow and
Ice Data Center (NSIDC) and NASA announced in mid-September that the extent of Arctic sea ice had dropped to 3.41 million square kilometers (1.32 million square miles)-- well below the previous record of 4.17 million square kilometers (1.61 million square miles) set in 20
Ice Data Center (NSIDC) and NASA announced in mid-September that the
extent of Arctic sea
ice had dropped to 3.41 million square kilometers (1.32 million square miles)-- well below the previous record of 4.17 million square kilometers (1.61 million square miles) set in 20
ice had dropped to 3.41 million square kilometers (1.32 million square miles)-- well below the previous record of 4.17 million square kilometers (1.61 million square miles)
set in 2007.